scholarly journals Graft copolymerization of acrylic acid onto hydrolyzed potato starch using various initiators

2013 ◽  
Vol 57 (1–2) ◽  
pp. 55 ◽  
Author(s):  
Suzana Djordjevic ◽  
Ljubisa Nikolic ◽  
Stana Kovacevic ◽  
Milena Miljkovic ◽  
Dragan Djordjevic
2004 ◽  
Vol 15 (5) ◽  
pp. 270-274 ◽  
Author(s):  
M. Patri ◽  
Varsha R. Hande ◽  
Swati Phadnis ◽  
B. Somaiah ◽  
Suhasini Roychoudhury ◽  
...  

2011 ◽  
Vol 291-294 ◽  
pp. 1335-1338
Author(s):  
Da Biao Zhao

Graft copolymerization of acrylic acid(AA) on starch to prepare super absorbent resin (SAR) under microwave irradiation were investigated using N,N-methylene bis-acrylamide as crosslinker and potassium persulfate as initiator. The influences of the amount of initiator and crosslinker, neutralization degree of acrylic acid(AA), ratio of starch to AA, microwave power level and irradiation time on the distilled water absorption amount of resin were investigated. The results indicated that it only needed 4min under the microwave level of 231W to obtain the resin with the maximum absorption amount of 1110g×g-1, under the conditions that 0.3wt% initiator, 0.02wt% crosslinker, 60% neutralization degree of acrylic acid, the ratio of starch to acrylic acid of 0.25. Under microwave irradiation, the synthesis and drying of super absorbent resin could be completed at one step without nitrogen. Compared to conventional heating method, the methods had the striking advantages of short reaction time, simple process and low cost.


2003 ◽  
Vol 89 (5) ◽  
pp. 1341-1346 ◽  
Author(s):  
Peeyoosh Kant Pandey ◽  
Jaya Banerjee ◽  
Kavita Taunk ◽  
Kunj Behari

2011 ◽  
Vol 183-185 ◽  
pp. 1812-1816
Author(s):  
Dan Wang ◽  
Zhan Qian Song ◽  
Shi Bin Shang ◽  
Zhan Jun Wang ◽  
Myoung Ku Lee

Novel kenaf-based superabsorbent polymers (SAPs) were prepared by grafting acrylic acid (AA) and acrylamide (AM) onto kenaf cellulose. Graft copolymerization was carried out in aqueous solution using N, N’-methylenebisacrylamide (NMBA) as crosslinking agent and sodium bisulfite (NaHSO3) and ammonium persulfate ((NH4)2S2O8) as initiator. The SAPs so obtained were examined by SEM. The absorbency of SAPs consists of different kenaf cellulose in deionized water, saline solutions and different pH value solutions were investigated.


2017 ◽  
Vol 31 (4) ◽  
pp. 3537-3545 ◽  
Author(s):  
Abdelazim Abbas Ahmed ◽  
Ismail Mohd Saaid ◽  
Nur Ashraf Md Akhir

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